LED Street Light Has To Be Faced With Some Difficulty

Time:2014/9/18  keywords:LED Street Light


       LED Street Light   use continues to expand, but the practice in the use of LED Lights indeed encountered some problems that market feedback the most problems, although there are products currently mature distance, but it can be said is a major LED business opportunities.

     1, offer high Currently led street light is far higher than the cost high-pressure sodium lamp, an LED lights offer in 3000 ~ 5000 yuan, or even higher, while a high-pressure sodium lamps imported brands (including lighting, electrical equipment light) offer does not exceed 1,500 yuan. The status quo in terms of, LED lights significantly expensive, offer is two to five times the high-pressure sodium lamps. Thus even if the LED lights power consumption is only one-third of the high-pressure sodium lamp, but because many offer higher than the high pressure sodium lamp, high pressure sodium lamp replacement costs with LED lights will still be a long recovery period.   Therefore, to the official promotion led street light in road lighting market, the cost is still the biggest obstacle. To make the LED lights is reduced to the same files offer existing fixtures, only requires the manufacturers to reduce costs. And only recently the skills continue to mature in the LED luminous efficiency and continuously improve the premise of combining several advantages of LED life, energy-saving advantages to compensate for the wind lamps on offer.

     2, the light emitting efficiency of the light source can not be made ??satisfactory demand Development of domestic LED light source is relatively late start abroad, the technical content from the world‘s advanced level there is a gap. Currently, Cree, Nichia, Osram and other imported light light effects are generally more than 100lm / W. Although the country has invested heavily in research and development continues to LED light source technology, the technical level is also rising, but the light efficiency and performance compared to Europe and America still has not a small gap.   Domestic LED light source PN junction in normal state jobs, although the number of theoretical life can reach 100,000 hours, but because of the heat of the problem can not be completely effective solution, then it in real life greatly reduced the number of applications, LED street light failure (life expectancy) doubt has become one of the key questions which are widely used in street lighting constraints. Many LED light source with domestic manufacturers claim that life expectancy can reach 5 to 60 thousand hours, but the practical application of laboratory experimental data and the data is not a small gap in the practical application process, some manufacturers of goods as the light fades large, short time on the show a lot of ‘dead lights‘ questions to the LED lights reputation caused great damage.

     3, the power system is unstable LED driver power supply instability is a consensus within the industry professionals, in practice it is restricting the development of LED Lighting industry, because drive power is an important component of LED lights, the problem will cause the whole lamp failure. Because of field operations in harsh environments, the number of life during some parts of the power supply into the drive and the whole number of bottlenecks street life.   Streetlight power equipment reliability resulting difference is likely in a short time on the bad, which led street light on this outdoor height devices, installation of equipment is difficult, more difficult to repair, and therefore high-power LED street lamp drive power quality, but off to become restricting the development of high-power LED street lamp short board.



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